ABSTRACT
Additionally, ring-opening polymerization can be used to prepare polymers, which cannot easily be prepared by other methods, e.g. poly(phosphazene)s. Some important ring-opening polymerizations are listed in Table 7.1. Note that the elongated, curled bonds shown above and in Table 7.1 are for drawing purposes only and allow for more compact representation of the molecules; the actual bonds are normal except for the effects of ring strain, e.g.
